Front

What type of relationship is described when ostriches and gazelles eat together and benefit from each other's ability to identify threats? Options: mutualism, commensalism, predation, parasitism

Back

mutualism

Front

What type of relationship exists between yucca flowers and yucca moths where both species are benefited?

Back

mutualism

Front

Mistletoe takes water and nutrients from the oak tree. This is good for the mistletoe but bad for the tree. What type of relationship is this?

Back

parasitism

Front

A bison walks through the grass, insects fly up and are seen and eaten by egrets.  This neither harms nor helps the bison, but it is easier for the egrets to get food. What type of relationship is this?

Back

commensalism

Front

A flea feeds on a mouse’s blood. This is good for the flea but bad for the mouse.

Back

parasitism

Front

What type of relationship do hermit crabs have with the shells of snails? Options: mutualism, commensalism, parasitism, predation

Back

commensalism

Front

What type of relationship is described when birds build nests in living trees without hurting them? Options: mutualism, commensalism, parasitism, predation

Back

commensalism

Front

In this food web, the grasshopper and the mouse have this relationship:

Back

competition

Front

In this food web, the lizard and the hawk have this relationship:

Back

predation

Front

In this food web, the snake and the mouse have this relationship

Back

predation